# Not a shell script, but something intended to be sourced from shell scripts
git_available_p() {
# Check that (1) we have git (2) this is a git tree.
- if `which git >/dev/null 2>/dev/null && git describe >/dev/null 2>/dev/null`
+ if ( which git >/dev/null 2>/dev/null && git describe >/dev/null 2>/dev/null )
then
# Check that some of the newer git versions we use are supported.
if [ "0" != `git rev-list HEAD --not HEAD --count 2> /dev/null` ]